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As chloroform is a volatile organic compound, [18] it dissipates readily from soil and surface water and undergoes degradation in air to produce phosgene, dichloromethane, formyl chloride, carbon monoxide, carbon dioxide, and hydrogen chloride.
The total global flux of chloroform through the environment is approximately 660 000 tonnes per year, [2] and about 90% of emissions are natural in origin. Many kinds of seaweed produce chloroform, and fungi are believed to produce chloroform in soil.
Chloropicrin, also known as PS (from Port Sunlight [4]) and nitrochloroform, is a chemical compound currently used as a broad-spectrum antimicrobial, fungicide, herbicide, insecticide, and nematicide. [5] It was used as a poison gas in World War I and during the Russian Invasion of Ukraine. [6]
A solvent (from the Latin solvō, "loosen, untie, solve") is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. Water is a solvent for polar molecules, and the most common solvent used by living things; all the ions and proteins in a cell are ...
Its name is derived from the Greek words χλωρός, khloros ("pale green") and φύλλον, phyllon ("leaf"). [3] Chlorophyll allows plants to absorb energy from light. Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion. [4] Conversely, it is a poor absorber of green and ...
John Snow (15 March 1813 – 16 June 1858 [1]) was an English physician and a leader in the development of anaesthesia and medical hygiene.He is considered one of the founders of modern epidemiology and early germ theory, in part because of his work in tracing the source of a cholera outbreak in London's Soho, which he identified as a particular public water pump.
Infobox references. The organic compound 1,1,1-trichloroethane, also known as methyl chloroform and chlorothene, is a chloroalkane with the chemical formula CH 3 CCl 3. It is an isomer of 1,1,2-trichloroethane. A colourless and sweet-smelling liquid, it was once produced industrially in large quantities for use as a solvent. [5]
Tetrachloroethylene is an excellent nonpolar solvent for organic materials. Additionally, it is volatile, highly stable (easily recycled) and nonflammable, and has low toxicity. For these reasons, it has been widely used in dry cleaning worldwide since the 1930s.